Hermann



(NoModeLj r H. SCHUMM.

APPARATUS FOR SUPPLYING OIL OR OTHER LIQUIDSUNDBR PRESSURH' No. 496,751. Patented May 2, 1893.

- nnnn Ass sonuuri, sseonoesnhnn'rs, GERMANY, Assieizon Pro 'rnn cesh'lO'lOltEN-FABRlK-DEUTZ."OF SAME PLACE;

\ APPARAT S,roirsnrr nseoi on cull-1R nouns-cross rasssuas Vsrncmcsriou roming err of Letters Patent noses-r51, dated Kay-:2, ees. Application fildflfillgnsi lessee. shins. cents. (Homddehl numerous April"1B 'lS9 1, F0.6,117.

T To on whom it mag concern. Be it known that llERsiANs' SCHUMM, u

citizen of Switzerland, residing at Cologne- Deu'tz, in the Empire of Germany, have in- 5' vented new and useful Improvements in Appan-stirs for Supplying 1 Oil or other Liquids Under a'Constant Head or lressu re,(l'or 'which I have obtained a patent in Grost'llritain, No. 6,717, dated April 18, 1891,) "of which the folm lowing is a. specification."

This inventionhas for its object to control the discharge of oil or other liquids from a reservoir in such a manner that it shall always take place undern practically constant head,

in order that a perfectly uniform supply of liquid may always be insured. iSuch'an arrangement is more particularly of importance in. the direct supply of petroleum or other oil from a. reservoir to an oil motor engine, as if, without such an arrangement, the head increases 'or decreases owing to the filling or emptying oi" the tank, the quantity of oil supplied to the engine varies in a corresponding manner and. consequently no uniform com position of the combustible charges for the cylinder can be obtained.

According above mentioned discharge under a practically constant head is obtained notwithstanding considerable variations in thelevel of the liquid in the main reservoir, by means of an arrangement which I will describe with reference to the accompanying drawing, which represents a vertical section of the apparatus.

This apparatus, which serves at the same time to protect volatile oils against evaporation and ignition, and which can be replenished at any time without stopping the action, consists of a closed reservoir A, which is filled through a funnel T. The filling tube R passes down to near the bottom of the reservoir so as to close the contents thereof against the atmosphere by means of the small quantity of oil contained in the tube R.

which communicates with the lower part of s the reservoir througha. small opening I; and the oil regulating device 7', while the upper part of the vessel communientesthrongh an opening a and the air pipe D with the air space at the top of the reservoir A. The

to the'preseni invention the C is a closed glass vessel, the lower part. of

smell .pipc connects the airspace of the vessel C with the'open' air, butits upper end is curved over thefrecesse'd top of the reservo r..

A pipe f leads the oil. or other liquid from-the tank A'a'nd vessel 0 to the oil motor-engine For the correct action of the apparatus it is assumed thnt the discharge from is regulated so that it" shall alive-y *s- -be less than the quentitythat can flow in the same time through theplug valve 1' from the reservoir, as otherwise theliquid could of course not rise into the vessel-O.

The action ofgthc apparatus is as follows: Assuming the reservoir A to he filled with liquid as shown, their, on opening the valve -'r, liquid will pass from A both down through the supply pipe f and up into Vibe vessel C through the hole I), while at the same time a proportionate the upper part of the vessel 0 though holea and pipe D into the upper part of the reser voi r. This will continue until the liquid level has risen "in C so as to cover the opening a, when, as no more air can pass through pipe D into the reservoir, no more liquid will flow from the same, end the liquid level in C will remain at'the point indicated b the arrow g.. The liquid will now flow off from the vessel 0 to the supply pipe 1 (the pipe E allowing the outer air to enter the same) and consequently the level will sink until the hole ais partially uncovered egeimwhereupones air can again pass into the top of A, liquid will or other apparatus where it is. tobefused.

quantity of air will pass from flow from the same, again partly flowing 01% will always be practically uniform, quite irrespective of the quantity "of liquid in the reservoir, which may vary from full down to a level corresponding to the level in 0. As

.soon'as the level has sunk to the last named point, this will heindicsted by the feet that e level in C will no longer rise so es'to-cover. athe hole a but will continue to fall. As soon es this is observed, the valve "'r-is closed, so'

continues as before. The fact that the reservoir is full will be shown by the liquid flowing down pipe D and through hole a into the vessel 0, and should this not be observed, 5 the recess at the top of the reservoir.

Although the above described apparatus is more particularly intended for the supply 0K oil to petroleum motor engines, yet it is equally applicable for effecting a constant supply 0E liquid for other purposes.

Having then described the nature of this invention and the best means I know of carrying the some into practical efiect, I clai n1 l, In apparatus forsnpplying oil and other liquids under a. constant head or pressure, thecombination of a closed reservoir such as A with a, vessel such as O with air inlet E and a, discharge pipe 1, these parts being made to the valve 1- is'o'p'e'n'ed again, and the discharge' then it will flow up pipe E and escape into communicate with each through valve or plug 'r and a. pipe D. provided with .holes'a and b, v and connecting the upper part of the reservoir with the upper part of the vessel 0, the hole a being closed ageinstthe ingress of air into the reservoir and consequently prevent- 35 iug the flow of liquid from the latter to the vessel 0; as soon as the liqnid level rises here in "so as to' close the said hole; splpsti ntiallyv is described. 4 s I 2. In apparatus for supplying oil and other 40 liquids nnder alconstant head, the combination oil, a closed reservoir such as-A a. filling funnel T and pipe R reaching down to near the bottom thereof, n closed vessel such as 0, com mnniosting with the reservoirA by avalve r a discharge pipe f an air pipe E and a pipe D with holes a and b connecting, the vessel 0 with the top of reservoir A, substantiallyas described;

In testimony whereof I have signed my name to this'specification, in the presence of'twosubscribing witnesses, this 29th'day'of July, A.D.1892. I

HERMANN SCHUMM.-

- Witnesses:

Enyrz ScnRoEDER, SIBILLA LANG. 

